Tracee Events Container Enrichment

Tracee is capable of extracting information about running containers. It does that by tracking container namespaces creation kernel events and enriching those events by communicating with the relevant container's runtime and SDK.

Experimental

This feature is experimental and should be explicitly enabled in tracee, by using the --container flag OR, if running tracee container image, setting the CONTAINERS_ENRICHMENT environment flag (see example bellow).

1. Running tracee manually

   If running tracee directly (not in a container), it will automatically search for known supported runtimes in their socket's default locations.

2. Running tracee using a docker container

   When running tracee from a container, the runtime sockets must be manually mounted in order for the enrichment features to work.

   Using containerd as our runtime for example, this can be done by running tracee like:

   docker run \
       --name tracee --rm -it \
       --pid=host --cgroupns=host --privileged \
       -v /etc/os-release:/etc/os-release-host:ro \
       -v /var/run/containerd:/var/run/containerd \
       -e CONTAINERS_ENRICHMENT=1 \
       aquasec/tracee:v0.16.0
   

   Most container runtimes have their sockets installed by default in /var/run. If your system includes multiple container runtimes, tracee can track them all, however one should mount either all their runtime sockets or /var/run in it's entirety to do so.

Supported Container Runtime Engines

Currently, tracee will look in the following paths for auto-discovering the listed runtimes:

1. Docker: /var/run/docker.sock

2. Containerd: /var/run/containerd/containerd.sock

3. CRI-O: /var/run/crio/crio.sock

4. Podman: /var/run/podman/podman.sock

Tip

Nested environments are somewhat tricky with this feature as evidenced by the docker mounting instructions. Tracee does not auto-discover this nesting and so sockets must be appropriately mounted and set up for tracee to enrich all containers correctly.

Viewing enrichment output

As a user, when container enrichment is enabled the event output will include enriched fields in these cases:

1. Running tracee with a json format will include all container enriched fields

   docker run \
       --name tracee --rm -it \
       --pid=host --cgroupns=host --privileged \
       -v /etc/os-release:/etc/os-release-host:ro \
       -v /var/run/docker.sock:/var/run/docker.sock \
       aquasec/tracee:v0.16.0 \
       --output json --containers
   

2. Running in container filtering mode and with enrichment enabled will add the image name to the table printer

   docker run \
       --name tracee --rm -it \
       --pid=host --cgroupns=host --privileged \
       -v /etc/os-release:/etc/os-release-host:ro \
       -v /var/run/containerd:/var/run/containerd \
       aquasec/tracee:v0.16.0 \
       --filter container --containers